Argument models--Classical (Aristotilian), Toulmin, Questions; one more: Logic--to be logical, the statement(s) is/are tested in a sequence: the basic syllogism: the classic example: all men are mortal, Socrates is a man, therefore Socrates is mortal;

dependent on the validity of premises: the following is logical but still fails: Redheads are silly, Suzi is a redhead, therefore Suzi is silly;